EP0367062A1 - Wasserenthärtungseinrichtung für Geschirrspülmaschinen - Google Patents

Wasserenthärtungseinrichtung für Geschirrspülmaschinen Download PDF

Info

Publication number: EP0367062A1
Authority: EP; European Patent Office
Prior art keywords: chamber; water; container; vessel; salt
Prior art date: 1988-11-04
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP89119620A

Other languages

English (en)

French (fr)

Other versions

EP0367062B1 (de

Inventor

Giuseppe Fontana

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Tecnoplastica Prealpina SpA

Original Assignee

Tecnoplastica Prealpina SpA

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1988-11-04

Filing date

1989-10-23

Publication date

1990-05-09

1989-10-23 Application filed by Tecnoplastica Prealpina SpA filed Critical Tecnoplastica Prealpina SpA

1990-05-09 Publication of EP0367062A1 publication Critical patent/EP0367062A1/de

1992-02-05 Application granted granted Critical

1992-02-05 Publication of EP0367062B1 publication Critical patent/EP0367062B1/de

2009-10-23 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

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Classifications

- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4229—Water softening arrangements

Definitions

This invention relates to a device for softening water for dishwashing machines, and regards specifically a special arrangement and configuration of the container for the ionic resin used for softening the water, of the salt container and of the vessel for collecting the water which regenerates the ionic resin, as well as the conduits which feed the water and interconnect said vessel and said containers, obtaining overall an integrated unit capable of providing several advantages compared to other known systems.
water softening devices which comprise an ionic resin container, a regeneration salt container and a vessel for collecting the regeneration water, formed separately from one another; thus during assembling and installation in a dishwashing machine, relative interconnecting tubes have to be fitted which may cause possible water leaks.
the configuration and separate arrangement of the containers for salt and ionic resin as well as the vessel for the regeneration water lead to greater dimensions and more complex assembling operations.
an object of present invention is to provide a device for softening water in dishwashing machines in which the ionic resin container, the salt container and the vessel for collecting the regeneration water constitute a structural and functional unit of minimal dimensions designed to provide numerous advantages compared to previously known systems.
conduits for interconnecting the various containers and the vessel for the regeneration water have been provided as integral part of the same unit with the ob vious advantage of eliminating the risk of any water leaks.
a further object of this invention is to provide a water softening device, as specified above having a compact structure designed to facilitate assembling greatly since the device is composed of an integrated unit, complete with all the connecting conduits and passages formed directly in the same structural unit of the softening device. During the assembling the use of flexible bands for fixing the interconnecting tubes is also completely eliminated and consequently possible additional causes of water leaks are obviated.
a further object of this invention is to provide a softening device as related above, by means of which the filling of one or more chambers of the vessel for the regeneration water can be selected by simply opening or closing a venting conduit.
a water softening device for dishwashing machines comprising: an ionic resin container connected to the interior of the washing tank of the dishwashing machine, respectively to a water inlet via a feeding conduit having an arch shaped portion provided with a first lateral aperture defining an air-break for the water; a salt container connected to the resin container by a solenoid valve; and a vessel for collecting the water to regenerate the resin said vessel comprising at least a first bottom opened chamber connected to the salt container, said chamber being furtherly connected to an upper venting hole characterised in that said water regeneration collecting chamber, said water feeding conduits and the respective passages for direct communication between the vessel and the aforementioned salt and resin containers, are provided in the form of a single unit having a plane configuration in which said vessel extends upwardly from and integral with the salt and resin containers, said water feeding conduit being in communication with the regeneration water chamber means of a second side opening positioned after the arch shaped portion; and at least a second supplementary chamber in said vessel, said second chamber
FIG. 1 shows part of a dishwashing machine 10 comprising a washing tank 11 provided with a rotor having nozzles 12, said rotor being connected to a pump 13 for feeding the washing water in an usual form.
14 in Fig. 1 indicates as a whole a device for softening water according to this invention, which is partially positioned below and on a side of the washing tank 11. The softening device is shown in detail in the remaining figures.
the softening device comprises a container 15 for the ionic resin used to soften the water, and a container 16 for the salt used to regenerate the ionic resin which is connected to the container 15 by means of a solenoid valve, not shown, provided in a seating 17 on one side of the salt container 16.
the vessel 18 and the containers 15 and 16 constitute an integrated functional and structural unit, together with all conduits or passages for circulating the water.
the vessel 18 is flat shaped and provided with a conduit 19 for feeding the water, in which the conduit 19 comprises a rising portion 19a connect to the inlet fitting 20, a first arched or arch shaped portion 19b and a second arch shaped portion 19c, concentric and internal to the previous one, which continues with a downwardly directed portion 19d which, via a duct 21 formed in the bottom part of the softening device, communicates with the interior of the ionic resin container 15, as shown in Fig. 7.
the second arched portion 19c of the water feeding conduit on its inner side has an aperture 22 defining, in a manner in itself known, an air-break for the water flow which runs along the conduit 19, before entering the ionic resin container 15 and then the tank of the dishwasher machine.
the flat vessel 18 comprises moreover a first chamber 23 for the regeneration water, and at least a second chamber 24 communicating with the first one and which, like the latter, opens at the bottom into the salt container 16 (Figs. 4 and 6) via a set of openings 25 in the lower part 23a common to the two chambers of the wall wich divides from the interior of the salt container.
the first chamber 23 again opens above and is connected to the feeding conduit 19 by a second lateral opening 26 provided at the beginning of the downwardly oriented portion 19d, i.e. after the arched portion 19c; this opening 26 can be properly dimensioned for example providing it in a plate, not shown, which can be inserted in a seat to enable the vessel 18 to be filled at the same time as the tank 11 of the dishwashing machine.
a slanted baffle 27 is provided between the upper open end of the chamber 23 and the air-break opening 22 of the arched section 19c of the feeding duct to prevent any leaks of water from the opening 22, from entering the chamber 23 by varying or modifying the quantity of water collected in it.
the chamber 23 is further connected to a side venting chamber 28 by means of an opening 29 which defines the maximum level of water which can be loaded in the chambers 23 and 24 for the water used for regenerating the resin.
the venting chamber 28 in turn communicates with the outside by means of an upper opening 30 and respectively communicates with the inside of the tank 11 of the dishwashing machine by means of a circular opening 31 for releasing steam.
fins 32, slanted in opposite directions are formed to define a steam condenser, integrated with the unitary structural assembly of the softening device.
the second chamber 24 for the resin-regeneration water is closed and communicates by means of an opening 34 with a separate venting duct 33, positioned behind the vessel 18; a removable plug member 35 enables the venting duct 33 to be closed or opened respectively so as to prevent or enable respectively chamber 24 together with chamber 23 to be filled.
the salt container 16 communicates by means of slots 37 with an intermediate chamber 38 having on the opposite side a hole 39 defining a valve seat normally closed by the solenoid valve; in this way the chamber 38 and therefore the salt container 16 can communicate with the bottom of the ionic resin container 15 via an additional conduit 40 and a hole 41 in the base wall of the said container 15.
the latter in the example given in Figure 7, is moreover provided with an upper outlet 42 which protrudes directly into the washing chamber 11 and which is closed by a removable cap 43 having lateral slots 44.
the cap 43 serves as a protection to prevent the dirty water contained in the tank 11 from entering the ionic resin container 15.
the inlet of the water into the tank 11 could be positioned differently and suitably connected by means of a water trap or in some other way to the outlet of the ionic resin container 15.
the water softening device of the invention is finally completed with a device for indicating the density of the brine contained in the salt container 16, in the form of a device integrated with the structure of the softening device. More particularly, as shown in Figs. 8 and 10, inside the salt container 16 a sump 45 is formed which communicates with the inside of the container 16 by openings or slots 46 in a separating baffle. Inside the sump 45 there is a float 47 comprising a magnet 48 which, as a function of the position assumed by the float 47, in turn dependent upon the density of the brine, actuates or de-actuates a magnetic switch 49 situated outside the container 16, connected to the electrical control circuit of the dishwashing machine.
the softening device operates as follows: on the assumption that only the chamber 23 of the flat vessel 18 is to be loaded, the plug 35 is inserted to close the venting duct 33.
the water flows along the feeding conduit 19 and from there, via the lower duct 21, reaches the interior of the ionic resin container 15, where the water is to be softened before being fed or entering the washing tank 11 of the dishwashing machine.
a certain quantity of water passes through the opening 26 of the feeding conduit 19, filling the chamber 23 for the regeneration water, until it reaches the level indicated by the venting opening 29.
the water which may fall from the opening 22 in the arched section 19b of the feeding conduit 19, is deviated by the baffle 27 towards the venting chamber 28 and from there is introduced into the washing tank 11 through the opening 31 on the base.
a control signal is given to the above mentioned solenoid valve so that it opens the valve seat 39 enabling the water in the chamber 23 or both chambers 23 and 24 to be released into the salt chamber 16 to cause a given quantity of brine to flow towards the resin to be regenerated.
the chamber 23 or both chambers 23 and 24 are again filled with the required quantity of water.
a water softening device for dishwashing machines comprising a salt container, an ionic resin container and a vessel for collecting the regeneration water, in the form of a structurally integrated unit in which the various component parts are interconnected by means of internal conduits or passages which avoid the use of additional connecting tubes, with consequent advantages as regards operation and assembling.
the flat configuration of the vessel for the regeneration water and its configuration of a single part integral with the salt container and with the ionic resin container provide a structural unit of extremely small dimensions which can be easily assembled by arranging the containers 15 and 16 below and respectively the vessel 18 on one side of the washing tank 11; in this way the water softening device can be assembled extremely rapidly and with the advantage that all the operations usually required for assembling the interconnecting houses and of the relative sealing bands are totally eliminated.
the adoption of chambers open below in the vessel is advantageous in that it allows the automatic elimination of any trace of stagnant water which in time could cause the formation of algae and substances likely to rot with the result of unpleasant smells.

Landscapes

Treatment Of Water By Ion Exchange (AREA)

EP89119620A 1988-11-04 1989-10-23 Wasserenthärtungseinrichtung für Geschirrspülmaschinen Expired - Lifetime EP0367062B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
IT2210688U IT215222Z2 (it)	1988-11-04	1988-11-04	Dispositivo addolcitore d'acqua per lavastoviglie.
IT2210688U		1988-11-04

Publications (2)

Publication Number	Publication Date
EP0367062A1 true EP0367062A1 (de)	1990-05-09
EP0367062B1 EP0367062B1 (de)	1992-02-05

Family

ID=11191586

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP89119620A Expired - Lifetime EP0367062B1 (de)	1988-11-04	1989-10-23	Wasserenthärtungseinrichtung für Geschirrspülmaschinen

Country Status (4)

Country	Link
EP (1)	EP0367062B1 (de)
DE (1)	DE68900815D1 (de)
ES (1)	ES2030575T3 (de)
IT (1)	IT215222Z2 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0678274A1 (de) *	1994-04-19	1995-10-25	CANDY S.p.A.	Mehrzweck-integrierter Zusammenbau für Geschirrspülmaschine
US7124765B2 (en) *	2003-03-12	2006-10-24	Miele & Cie, Kg	Dishwasher having a water softener with a salt container located in the dishwasher door
US7988790B2 (en)	2002-04-10	2011-08-02	Fisher & Paykel Appliances Limited	Washing appliance water softener
WO2016203441A1 (en) *	2015-06-19	2016-12-22	Bitron S.P.A.	Integrated component for a dishwashing machine
WO2016203440A1 (en) *	2015-06-19	2016-12-22	Bitron S.P.A.	Integrated component for a dishwashing machine
CN108478152A (zh) *	2018-05-12	2018-09-04	中山市天隆燃具电器有限公司	洗碗机用的软水器与呼吸器一体结构
CN108742454A (zh) *	2018-07-23	2018-11-06	广东赛普电器制造有限公司	一种用于洗碗设备的软水呼吸分配一体机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN108606759A (zh) *	2018-06-01	2018-10-02	华帝股份有限公司	一种洗碗机呼软一体器

Citations (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH513773A (de) *	1970-07-20	1971-10-15	Holzer Patent Ag	Einrichtung zum selbsttätigen Regenerieren von Ionenaustauschern
FR2209454A5 (en) *	1972-11-10	1974-06-28	Elbi Spa	Water softener signalling device - warning lamp being actuated by perm-anent magnet in float in cooperation with reed switch
FR2442037A1 (fr) *	1978-11-25	1980-06-20	Schrott Hugo	Procede et dispositif pour la regeneration d'un echangeur d'ions pour machines a laver la vaisselle
FR2482442A3 (fr) *	1980-05-19	1981-11-20	Smeg Elettrodomestici	Groupe de charge et de decalcification de l'eau, pour machines a laver la vaisselle
DE3209563A1 (de) *	1982-03-16	1983-09-29	Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart	Enthaertungseinrichtung fuer haushaltgeraete, insbesondere fuer geschirrspuelmaschinen
DE3239226C1 (de) *	1982-10-22	1984-01-19	Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart	Geschirrspülmaschine
GB2133975A (en) *	1983-01-26	1984-08-08	Bosch Siemens Hausgeraete	Water softening equipment for a dishwashing machine
DE3345582A1 (de) *	1983-12-16	1985-06-27	Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt	Wasservorratsbehaelter, insbesondere fuer eine enthaertungseinrichtung in geschirrspuelmaschinen
EP0205788A1 (de) *	1985-06-26	1986-12-30	Bosch-Siemens HausgerÀ¤te GmbH	Haushalt-Geschirrspülmaschine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3522900A1 (de) *	1985-06-26	1987-01-08	Bosch Siemens Hausgeraete	Geschirrspuelmaschine

1988
- 1988-11-04 IT IT2210688U patent/IT215222Z2/it active
1989
- 1989-10-23 ES ES89119620T patent/ES2030575T3/es not_active Expired - Lifetime
- 1989-10-23 DE DE8989119620T patent/DE68900815D1/de not_active Expired - Fee Related
- 1989-10-23 EP EP89119620A patent/EP0367062B1/de not_active Expired - Lifetime

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH513773A (de) *	1970-07-20	1971-10-15	Holzer Patent Ag	Einrichtung zum selbsttätigen Regenerieren von Ionenaustauschern
FR2209454A5 (en) *	1972-11-10	1974-06-28	Elbi Spa	Water softener signalling device - warning lamp being actuated by perm-anent magnet in float in cooperation with reed switch
FR2442037A1 (fr) *	1978-11-25	1980-06-20	Schrott Hugo	Procede et dispositif pour la regeneration d'un echangeur d'ions pour machines a laver la vaisselle
FR2482442A3 (fr) *	1980-05-19	1981-11-20	Smeg Elettrodomestici	Groupe de charge et de decalcification de l'eau, pour machines a laver la vaisselle
DE3209563A1 (de) *	1982-03-16	1983-09-29	Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart	Enthaertungseinrichtung fuer haushaltgeraete, insbesondere fuer geschirrspuelmaschinen
DE3239226C1 (de) *	1982-10-22	1984-01-19	Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart	Geschirrspülmaschine
GB2133975A (en) *	1983-01-26	1984-08-08	Bosch Siemens Hausgeraete	Water softening equipment for a dishwashing machine
DE3345582A1 (de) *	1983-12-16	1985-06-27	Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt	Wasservorratsbehaelter, insbesondere fuer eine enthaertungseinrichtung in geschirrspuelmaschinen
EP0205788A1 (de) *	1985-06-26	1986-12-30	Bosch-Siemens HausgerÀ¤te GmbH	Haushalt-Geschirrspülmaschine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0678274A1 (de) *	1994-04-19	1995-10-25	CANDY S.p.A.	Mehrzweck-integrierter Zusammenbau für Geschirrspülmaschine
US7988790B2 (en)	2002-04-10	2011-08-02	Fisher & Paykel Appliances Limited	Washing appliance water softener
US7124765B2 (en) *	2003-03-12	2006-10-24	Miele & Cie, Kg	Dishwasher having a water softener with a salt container located in the dishwasher door
WO2016203441A1 (en) *	2015-06-19	2016-12-22	Bitron S.P.A.	Integrated component for a dishwashing machine
WO2016203440A1 (en) *	2015-06-19	2016-12-22	Bitron S.P.A.	Integrated component for a dishwashing machine
US10646098B2 (en)	2015-06-19	2020-05-12	Bitron S.P.A.	Integrated component for a dishwashing machine
CN108478152A (zh) *	2018-05-12	2018-09-04	中山市天隆燃具电器有限公司	洗碗机用的软水器与呼吸器一体结构
CN108742454A (zh) *	2018-07-23	2018-11-06	广东赛普电器制造有限公司	一种用于洗碗设备的软水呼吸分配一体机
CN108742454B (zh) *	2018-07-23	2024-02-20	广东赛普智能制造股份有限公司	一种用于洗碗设备的软水呼吸分配一体机

Also Published As

Publication number	Publication date
ES2030575T3 (es)	1992-11-01
IT8822106V0 (it)	1988-11-04
DE68900815D1 (de)	1992-03-19
EP0367062B1 (de)	1992-02-05
IT215222Z2 (it)	1990-09-11

Legal Events

Date	Code	Title	Description
1990-03-24	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1990-05-09	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): DE ES FR SE
1990-09-12	17P	Request for examination filed	Effective date: 19900707
1991-04-24	17Q	First examination report despatched	Effective date: 19910307
1991-12-18	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1992-02-05	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE ES FR SE
1992-03-19	REF	Corresponds to:	Ref document number: 68900815 Country of ref document: DE Date of ref document: 19920319
1992-06-12	ET	Fr: translation filed
1992-11-01	REG	Reference to a national code	Ref country code: ES Ref legal event code: FG2A Ref document number: 2030575 Country of ref document: ES Kind code of ref document: T3
1992-12-10	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1992-12-10	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1993-01-27	26N	No opposition filed
1995-01-31	EAL	Se: european patent in force in sweden	Ref document number: 89119620.6
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